bnx2: Eliminate TSO header modifications.
This is now possible with updated firmware.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 21711c7..f147204 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -6008,7 +6008,7 @@
}
#endif
if ((mss = skb_shinfo(skb)->gso_size)) {
- u32 tcp_opt_len, ip_tcp_len;
+ u32 tcp_opt_len;
struct iphdr *iph;
vlan_tag_flags |= TX_BD_FLAGS_SW_LSO;
@@ -6032,21 +6032,7 @@
mss |= (tcp_off & 0xc) << TX_BD_TCP6_OFF2_SHL;
}
} else {
- if (skb_header_cloned(skb) &&
- pskb_expand_head(skb, 0, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
-
- ip_tcp_len = ip_hdrlen(skb) + sizeof(struct tcphdr);
-
iph = ip_hdr(skb);
- iph->check = 0;
- iph->tot_len = htons(mss + ip_tcp_len + tcp_opt_len);
- tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
- iph->daddr, 0,
- IPPROTO_TCP,
- 0);
if (tcp_opt_len || (iph->ihl > 5)) {
vlan_tag_flags |= ((iph->ihl - 5) +
(tcp_opt_len >> 2)) << 8;